Back to results
US 8,769,835 B2Granted
Pencil sharpener and method of producing it
AssigneeKUM Limited
InventorFritz Lüttgens
Life of this patent
Estimating the term…
Abstract
A pencil sharpener (1) with a handle (3) and a sharpener insert (4) inserted into the handle (3) with a pencil guide channel (33) and a paring blade (34) is proposed, in conjunction with which the handle (3) is formed so as to correspond at least partially to the inner contours of a curved human hand (26). Improved ease of handling is achieved through the formed handle (3). Also proposed is a method for the manufacture of a pencil sharpener (1) of this kind, in which the handle (3) is formed in subsidiary areas so as to correspond to the inner contours of the human hand (26).
Claims26
A pencil sharpener, comprising:
- a handle having a central longitudinal axis;
- a sharpener insert inserted in said handle along said longitudinal axis, said sharpener insert having a pencil guide channel and a paring blade;
- said handle having a base configured to being gripped by a human hand with a thumb and an index finger, said base having a thumb support groove formed therein running partially around said longitudinal axis and at least one finger support groove lying opposite said thumb support groove and running partially around said longitudinal axis;
- and
- a lower flat support surface being formed on said base, said lower support surface being formed of two substantially flat surfaces that are inclined relative to one another and configured to allow the pencil sharpener to be set down and supported on a surface in different positions.
2 more elements
Dependencies are inferred from the claim text.